Question about 1999 Volkswagen Passat

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Heater on passat not getting hot

Hi, 1999 passat tdi heater not getting hot and sometimes the climate control is flashing (i have changed the thermostat but car not getting hot but heater not always working. this is driving me mad please help.

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  • 256 Answers

Take it into a shop to be check out, Instead of being so cheap,

Posted on Dec 06, 2012


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Posted on Jan 02, 2017

  • 119 Answers

SOURCE: I have a 2001 Passat 1.8t and I'm not getting no

In the footwell area on the left and right after removing small panels look inside with a torch and you will see the levers operated by the motor for the heater controlls wich are coloured orange white and grey but may be other colours, lubricate with wd40 lightly and check there is no water leak from heater radiator.Mine worked after this and problems started with the freezing weather we had.On American models there is a bleed cap in the engine bay where the 2 pipes enter the firewall under a hose clamp.

Posted on Feb 12, 2010

  • 10 Answers

SOURCE: climate control

flap for fresh air/ recirc air have a tendancy to get stuck and thus causing the clicking noise. dont envy you on the repair as they are hard to get to.

Posted on Jul 07, 2008

  • 5 Answers

SOURCE: thermostate location? 1999 passat petrol

this is for the mk3 jetta 2.0L but you thermostat is in the exact same position...

Posted on Jan 02, 2009

  • 345 Answers

SOURCE: 1997 passat climate controls flashing when you first turn on ign

get a code read of it,but it probably is the fan unit its quite a common failure on passats

Posted on Jan 14, 2009

  • 194 Answers

SOURCE: no lights on climate control

for the 99,

Set fan knob to #2 position

Grab and pull straight off. bulb is in there....

the 93' may be similar, but I do not recall

Posted on Jan 06, 2010

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Hi, the heater of my 2000 mitsi galant says 30 degrees but still cold. sometimes normal but sometimes 30 degrees is too cold and when i turn dial to 30.5 then too hot.

Is the engine getting up to temperature?
If so, then the issue is with the interior heater system.

Check or change the interior thermistor.
If this doesn't help, then replace the climate control computer/control box.

Nov 13, 2012 | 2000 Mitsubishi Galant

1 Answer

1999 VW Passat heat not working

Could be your thermostat... If defective, it will not allow the engine to heat up. Take the coolant cap off before you start the car when it is cooled off. start the engine and let it idle, look at the coolant. The coolant should not be flowing or moving right when you start the engine, if it is, the thermostat is bad. If you dont have enough coolant and you see it is low, this may also cause the heater to stop working. Someone may have by-passed your heater coil, check that. Sometimes when a heater coil leaks, people will by pass it so that they can continue to use the car or they cant afford to change it. It should be located on the passenger side under the dash or on the firewall inside the engine compartment on the passenger side. Another thing could be your climate control which is a fancy name for the heater controls on your dash, sometimes the switches become defective and will not operate the heater.

Oct 25, 2012 | 1999 Volkswagen Passat

1 Answer

Ineed to know what grade oil i need for my 2005 tdi 90 horsepower passat

hi here is a list with the type of engine oil you need also gearbox type as well in case you need that to
cold climate sae 5w/40 synthetic
moderate climate sae 5w/40 synthetic
hot climate sae 5w/40 synthetic

GearBox Manual
sae 75w/90

gearbox Auto
none stated

hope this helps

Feb 22, 2010 | Volkswagen Passat Cars & Trucks

1 Answer

Coolant leak

check them plastic housings for distortion ,or just change them ,they are only cheap anyway and very prone to leaks when hot and under load

Jun 20, 2009 | 1999 Volkswagen Passat

1 Answer

1997 passat climate controls flashing when you first turn on ign

get a code read of it,but it probably is the fan unit its quite a common failure on passats

Jan 12, 2009 | 1999 Volkswagen Passat

1 Answer

Passat problem

The climate control issue is most likely the air temperture blend door motor has quit working or the ac is low on Freon from a leak, also the control head can cause this problem, the vibration may be from hard engine mounts, when the rubber in the mounts ages it gets hard and does not absorb vibration as well, the pulsation is a low voltage issue and you should have the alternator tested.

Oct 08, 2008 | 2003 Volkswagen Passat

3 Answers


Had this problem after replacing water pump. Hard system to bleed. small bleeders on heater hoses and one near the front of the engine.
VW vortex has a post on cooling system bleeding. check to see if both heater hoses are hot. if so check the climate control: push econ and mode at the same time. it will give you codes. The blend door can be checked for freedom of movement.

Aug 13, 2008 | 2001 Volkswagen Passat

1 Answer

Climate control

flap for fresh air/ recirc air have a tendancy to get stuck and thus causing the clicking noise. dont envy you on the repair as they are hard to get to.

Jun 26, 2008 | 2002 Volkswagen Passat

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